Is Western Digital Red or Western Digital Red Plus more compatible with Synology or QNAP NAS?

On the official lists, Western Digital Red appears on 370 models and Western Digital Red Plus on 426 models. Both are vendor-confirmed lines; check your exact model below.

What is the largest capacity: Western Digital Red or Western Digital Red Plus?

Western Digital Red tops out at 14TB on the official lists; Western Digital Red Plus at 14TB.

Western Digital Red vs Western Digital Red Plus

Both lines are on Synology's and QNAP's official compatibility lists — this is not a "which works" question, but a "which fits your machine and workload" one. Everything below is read from the vendors' own HCLs, refreshed daily.

Western Digital Red NAS 370NAS models up to 14TB · 26 part numbers

Western Digital Red Plus NAS 426NAS models up to 14TB · 41 part numbers

Western Digital Red prices Western Digital Red Plus prices

Head-to-head on the official list

	Western Digital Red	Western Digital Red Plus
Listed on official HCLs	370 models	426 models ✓
Largest listed capacity	14 TB	14 TB
Smallest listed capacity	1 TB	1 TB
Part numbers on list	26	41 ✓
Product line	NAS	NAS

Which should you buy?

Coverage-wise, Western Digital Red appears on more NAS machines (370 vs 426) — for an older or unusual model that margin can matter. Within the same tier, the honest answer is: pick the cheaper part number at your target capacity, then verify it on your exact model's page.

Both lines overlap on 229 NAS models — if yours is one of them, either drive is officially supported.

Popular part numbers (most-listed 12 of 26 / 41)

Western Digital Red

WD20EFAX — 2TB, 195 models
WD60EFAX — 6TB, 194 models
WD40EFAX — 4TB, 147 models
WD30EFAX — 3TB, 147 models
WD60EFRX - 68L0BN1 — 6TB, 140 models
WD20EFRX — 2TB, 140 models
WD10EFRX — 1TB, 140 models
WD40EFRX - 68WT0N0 — 4TB, 139 models
WD30EFRX - 68EUZN0 — 3TB, 133 models
WD40EFRX - 68N32N0 — 4TB, 133 models
WD30EFRX - 68N32N0 — 3TB, 132 models
WD50EFRX - 68L0BN1 — 5TB, 129 models

Western Digital Red Plus

WD120EFAX-68UNTN0 — 12TB, 223 models
WD120EFBX-68B0EN0 — 12TB, 222 models
WD140EFFX-68VBXN0 — 14TB, 221 models
WD140EFGX-68B0GN0 — 14TB, 218 models
WD10EFRX (Red NASware 3.0) — 1TB, 209 models
WD80EFBX-68AZZN0 — 8TB, 204 models
WD80EFAX-68KNBN0 — 8TB, 204 models
WD80EFPX — 8TB, 158 models
WD101EFBX-68B0AN0 — 10TB, 141 models
WD101EFAX-68LDBN0 — 10TB, 141 models
WD30EFPX-68C6CN0 — 3TB, 114 models
WD40EFPX-68C6CN0 — 4TB, 114 models

NAS models that list both lines

These machines officially support both Western Digital Red and Western Digital Red Plus — your real decision is workload and price, not compatibility.